Each of the three helicopter rotor blades shown in the


Each of the three helicopter rotor blades shown in the figureis 5.20 m long and has a mass of 240 kg. Therotor is rotating at 400 rpm.

A) What is the rotational inertia of therotor assembly about the axis of rotation? (Each blade can beconsidered to be a thin rod.)

B) What is the kinetic energy of rotation?

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Physics: Each of the three helicopter rotor blades shown in the
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